no sound in my computer after i upgrade GPU

hello guys i have HP z220 Workstation !

last week i got new gpu (AMD rx 570 serie) i installed it and i installed the drivers .. i plaged it with HDMI port and switched to VGA port because i dont have HDMI in my screen
after this i lost sound i see new sound card added and seted as default ! its AMD HDMI

that mean the computer sending send via HDMI cable to screen but i dont have speacker in my screen so i disabled HDMI

but after that i see that i still dont hear sound ... and also after i plag microphone or headphone i dont see that and also i dont see new device plagged in jack port notification .
please note :

-i tryed to updated lot of time driver of GPU and Sound card but i still have this problem
-i m using 3 gpu intel HD 4600 And Nvidia Quadro K2000 And AMD rx 570 serie


-i unplagged all GPU and i still have the problem
-i try with another operating system and i still have the problem
-in computer startup after i push on button i hear bad sound from speacker for 0.5 sec ..

is that mean my on board sound card dead ? how to fix it ? how to find in in motherboard ?

You should be able to just select the Realtek device for audio output and set it as default device. If that doesn't work, uninstall the video card driver and don't install the other options but just the video card driver.

sorry but i have installed new system operator (no driver installed ) and i still have the problem

Go to the start orb and in search type in device manager. Do you see any yellow exclamation marks?

Under your sound playback properties. Is the Realtek device set as default?

no sir ! i dont see any yellow mark on the driver
and all driver installed and updated
and realtelk is set as default sound card

Sorry i want the on baord realtek sound card work
the amd and nvidia sound is working
but i want my main sound card work
i removed all the GPU installed and also all drivers and i reinstall windows and the sound card still not working

Hello

Does the Speakers connected to the computer have own volume control? You might have accidentally adjusted volume output, while playing with HDMI leads.

Check the volume level here makes sound audible.

i can see only this


also speacker not detected and microphone and headphone not detected
before i got this problem when i plag microphone i get notification and now no

If you click the icon and then click properties or configure what do you get?